Speaker type: Card-style Bluetooth speaker Control method: Buttons Functional features: Bluetooth connectivity, TF card support Transmission range: Up to 10 meters in open, unobstructed environments (walls and buildings may affect signal strength) Material: Aluminum alloy casing with plastic components Bluetooth version: 5.0 Battery capacity: 300mAh Play time: Approximately 13 hours Voltage: 3.7V Charging voltage: 5V Speaker driver: 36mm diameter Power output: 43W Frequency response: 20Hz 20kHz Signal-to-noise ratio: 80dB Distortion: 1% Wireless connectivity: Connects to devices via Bluetooth, no cables required Portable design: Compact and lightweight, ideal for travel and outdoor use Power source: USB-powered, compatible with various USB power adapters and devices Full-range audio: Delivers balanced sound across all frequencies for clear audio performance Color: Black Package Contents: 1 x Wireless Bluetooth Speaker Note: The package includes only the items listed above. Other accessories are not included. Color may vary slightly due to lighting and monitor settings. Size may vary by 13cm due to measurement tolerance.